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A triangular roof has a base of 12 meters and a height of 9 meters. What is the

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Question: A triangular roof has a base of 12 meters and a height of 9 meters. What is the area of the roof?

Options:

  1. 54 sq meters
  2. 72 sq meters
  3. 108 sq meters
  4. 96 sq meters

Correct Answer: 54 sq meters

Solution: 

Area = 1/2 * base * height = 1/2 * 12 * 9 = 54 sq meters.

A triangular roof has a base of 12 meters and a height of 9 meters. What is the

Practice Questions

Q1
A triangular roof has a base of 12 meters and a height of 9 meters. What is the area of the roof?
  1. 54 sq meters
  2. 72 sq meters
  3. 108 sq meters
  4. 96 sq meters

Questions & Step-by-Step Solutions

A triangular roof has a base of 12 meters and a height of 9 meters. What is the area of the roof?
  • Step 1: Identify the formula for the area of a triangle, which is Area = 1/2 * base * height.
  • Step 2: Find the base of the triangle, which is given as 12 meters.
  • Step 3: Find the height of the triangle, which is given as 9 meters.
  • Step 4: Substitute the base and height into the formula: Area = 1/2 * 12 * 9.
  • Step 5: Calculate 1/2 of 12, which is 6.
  • Step 6: Multiply 6 by 9 to get 54.
  • Step 7: The area of the triangular roof is 54 square meters.
  • Area of a Triangle – The area of a triangle is calculated using the formula: Area = 1/2 * base * height.
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